<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{

	private $_id;
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	public function authenticate()
	{
		$user = User::model()->findByAttributes(array('username'=>$this->username));
		if($user === null) {
			$this->errorCode=self::ERROR_USERNAME_INVALID;
		} else if($user->password != $user->encrypt($this->password))  {
			$this->errorCode=self::ERROR_PASSWORD_INVALID;
		} else {
			$this->errorCode=self::ERROR_NONE;
			$this->_id = $user->id;
			if($user->lastlogintime === null) {
				$lastLoginTime = time();
			} else {
				$lastLoginTime = strtotime($user->lastlogintime);
			}

			$this->setState('lastLoginTime', $lastLoginTime);
			$auth=Yii::app()->authManager;
			$accessRoles = $auth->getRoles($user->username);
			if(!$accessRoles) {
				$auth->assign($user->userRole->rolename,$user->username);
			}

		}
		return !$this->errorCode;
	}

	public function getId() {
		return $this->_id;
	}
}